What Is an Overbite?
An overbite — sometimes called buck teeth — is when your upper front teeth extend too far over your lower front teeth. A small overbite of 1-2mm is normal and even healthy. But when the overlap exceeds 3-4mm, it becomes a dental concern that can affect your appearance, speech, and long-term oral health. The good news is that overbites are one of the most treatable orthodontic conditions, with excellent results at any age.
Types of Overbite
Not all overbites are the same. Understanding which type you have helps determine the best treatment approach.
- Dental OverbiteCaused by the position of the teeth themselves. The teeth grew in at an angle that pushes the upper teeth forward. This is the most common type and responds well to braces or aligners.
- Skeletal OverbiteCaused by the jaw structure — the upper jaw is larger or positioned further forward than the lower jaw. This type may require additional treatment beyond braces.
- Horizontal (Overjet)The upper teeth protrude outward, creating a gap between the upper and lower front teeth when the mouth is closed.
- Vertical (Deep Bite)The upper teeth cover too much of the lower teeth vertically. In severe cases, the lower teeth may bite into the roof of the mouth.
What Causes an Overbite?
- Genetics — jaw size and shape are inherited. If a parent had an overbite, their children are more likely to develop one.
- Childhood habits — prolonged thumb sucking, pacifier use, or tongue thrusting can push upper teeth forward during jaw development.
- Missing lower teeth — when lower teeth are lost or missing, the upper teeth can drift downward and forward over time.
- Teeth grinding (bruxism) — chronic grinding can wear down lower teeth and shift bite alignment.
- Nail biting or pen chewing — repetitive pressure on the front teeth can gradually push them out of alignment.
Left untreated, a significant overbite can lead to: jaw pain and TMJ disorders, uneven tooth wear, difficulty chewing, speech problems, increased risk of trauma to protruding front teeth, and self-consciousness about your appearance.
Concerned About Your Overbite?
Our orthodontists will evaluate your bite for free and explain your options.
Treatment Options
Modern orthodontics offers several effective approaches to correct an overbite. The right treatment depends on the type and severity of your overbite, your age, and your preferences.
Traditional Braces
The gold standard for overbite correction. Braces use brackets and wires to gradually shift teeth into proper alignment. Treatment takes 18-24 months for most overbites.
Clear Aligners
Effective for mild to moderate overbites. Custom trays are replaced every 1-2 weeks. May include rubber bands for bite correction. Takes 12-18 months.
Palate Expanders
Used in children whose jaws are still growing. The device gradually widens the upper jaw to create proper alignment with the lower jaw. Most effective before age 14.
Jaw Surgery (Severe Cases)
For skeletal overbites in adults where the jaw bones need repositioning. Combined with braces for comprehensive correction. Recovery takes 6-12 weeks.
Overbite Correction by Age
Frequently Asked Questions
Can an overbite fix itself?
How much does overbite correction cost?
Does fixing an overbite change your face shape?
Is overbite correction painful?
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